Apparatus for making glass articles.



No. 789.397. PATENTED MAY 9, 1905.

F. L. o. WADSWORTH.

APPARATUS FOR MAKING GLASS ARTICLES.

APPLIOATION I'ILED AUG. 21, 1902.

2 BHEETS-SHEET 1.

MI@ I e I J f I I l? w-ruzsszs miren-ron No. '789,397. PATENTED MAY 9,1905. F. L. 0. WADSWORTH.

APPARATUS FOR MAKING GLASS ARTICLES.

APPLIOATION FILED AUG. 21, 1902.

2 SEEETS-SHEBT 2` INVNTOR WITHESSES STAT Patented May 9, 1905.

FRANK L. O. WVADSVVORTH, OF ALLEGHENY, PENNSYLVANIA, ASSIGNOR TO PRESSEDPRISM PLATE G-LASS COMPANY, OF NEXV YORK, N. Y., A CORPORATION OF WESTVIRGINIA.

APPAPATUS FOR MAKlNG GLASS ARTICLES.

SPECIFICATION forming part of Letters Patent No. '789,397, dated May 9,1905.

Application filed August 21, 1902. Serial Ne. l20,592.

To (LZZ whom, it may concern:

Be it known that I, FRANK L. O. W ADS- WORTH, of Allegheny, in thecounty of Allegheny and State of Pennsylvania, have in vented a new anduseful Apparatus for Making Glass Articles, of which the following is afull, clear, and exact description, reference being had to theaccompanying drawings, forming part of this specification, in which*Figure 1 shows in side elevation, partly in vertical section, a machineembodying my invention. Fig. l is a cross-section of the molding-plate,hereinafter described, taken on the line 1 l of Fig. 1. Fig. 2 is avertical crosssection on the line II II of Fig. 1, showing one end ofthe roll in section. Fig. 3 is a seetional View showing a glass platewith projecting ribs formed thereon by the machine shown in Fig. 1, andFig. 4 illustrates the subsequent operation in which these ribs areflattened by a roller. Fig. 5 shows in section a glass tile which hasbeen shaped by my apparatus and is held in place with cement.

My invention is primarily designed for the manufacture of glass tileshaving ribs or projections formed on the rear surface and 'fiattened orwidened at their ends, so as to form keys for holding the tiles to a bedof cement.

My invention in one of its features consists in apparatus for molding aglass plate with such projections or ribs and then applying pressure tosuch molded projections or ribs and fiattening or expanding them. Myinvention enables me to practice these steps when the relative positionof the glass sheet and the molding instrument are changed after theprojections or figures have been formed, and the molding-surface isremolded or refigured by bringing different portions of t againintocontact with the molding-surface.

Figs. 1, 2, 3, and 4 illustrate one form of the apparatus for thepractice of my invention. In these figures, 2 is a table on which thebody of plastic glass 3 to be molded is placed. This table is mountedupon a plurality of standards 4:, adapted to be moved vertically,preferably by a cylinder 5 and intermediate positive connectingmechanism, which consists, preferably, of a pitman 19, connected withthe cylinder and connected by levers 6 and rods 20 5 to shafts 21, whichby levers 22 and links 23 are connected to vertical slides 24, by whichthe table is guided in its vertical motion. The cylindcr is providedwith suitable fluid-supply connections, the rise of the table beingeli'ected by the admission of fluid and its descent being efi'ected bygravity. The position of the table when at its lowest point isdctermined by an adjustable stop consisting, preferably, of an eccentric7, which is adaptcd to be engaged by and to stop part of the connectingmeehanism 6. 8 is a carriage on which a molding-plate 9 is mounted andis preferably backed yieldingly by springs 10, and on the carriage is aroll 11, which may have a 5 plain face and is rotated by suitable powerconnoctions 12. The carriage is capable of horizontal motion to bringthe roll 11 and plate 9 successively over the table 2, and for thispurpose I may employ on the table driven 7 pinions 13, which eng-agewith stationary racks 14:. The roll 11 may be movable lengthwise of itsaxis for the purpose of adjustment. This is not necessary where the rollis plain, but is employed when it is grooved, as described below. Suehadjustment may be effected by mounting the roll slidingly on its shaftwith a keyway 15 and providing a nut 16 and serew-shaft 17 for movingit.

The operation is as follows: The table 2 is set in its lowest position'permitted by the eccentric 7, which has been adjusted by a handle 7 tosecure the desired thickness of glass, the plastie glass is placedthereon, and the carriage 8 is advanced so as to move the roll ,ll over5 the glass and to 'liatten it upon the table into a flat sheet. Furtheradvance of the carriage moves the roll beyond the table and brings overthe glass the molding-plate 9, whose under surface is formed Withgrooves of suitable 9 shape to impress upon the glass the desired ribsor projections. Then by actuating the cylinder 5 the table is raised,and the glass sheet being pressed thereby against the plate 9 is moldedwith the projections or ribs 18. (Shown in Fig. 3.) The table is thenlowered by reverse operation of the cylinder, and the stop 7 is adjustedso as to permit it to descend farther than the position which itoccupied during the operation ofthe roll. The carriage 8 is then movedin the reverse direction, so as to carry the roll 11 over the moldedglass sheet, and as the surface of the roll comes into contact with theedges of the projections 18 it acts thcreon at right angles to thesurface of the sheet and fiattens or expands the projections into theform of keys 18', as shown in Fig. 4. The shaping of the glass sheet isthus completed, and after the necessary annealing and cutting it isready for use as tiles, as shown in Fg. 5.

l claim- 1. Apparatus for making glass articles which consists in thecombination of a table, means for forming projecting ribs on the glass,a roll for fiat-tening such ribs, and means for adjusting the tablevertically between said operations; substantally as described.

2. Apparatus for making glass articles which consists in the combinationof a table for holding the glass, a carriage carrying a forming-die androll, and means for moving the carriage over the table; substantially asdescribed.

3. Apparatus for making glass articles which consists in the combinationof a table for holding the glass, a carriage carrying a forming-die androll, means for moving the carriage over the table, and means foradjusting the table vertically; substantially as described.

4. In apparatus for making glass articles, in combination, a table, agrooved moldingplate movableinto operative relation with said table andin a plane parallel thereto, a plurality of supports for the table, amovable piston and positive connections between the piston and thetable-supports for moving said supports simultaneously and through equaldistances; substantially as described.

5. In apparatus for making glass articles, in combination, amolding-plate, a table movable toward and from said molding-plate, aroll laterally movable with respect to the table, a plurality ofsupports for the table, amovable piston, positive connections betweenthe piston and supports for moving the said supports simultaneously andthrough equal distances, and an acljustable stop for the table in itslowered position; substantially as described.

In testimony Whereof I have hereunto set my hand.

FRANK L. O. YVADSXVORTH. i/Vitnesses:

GEORGE B. BLEMING, L. M. REDMAN.

